Curated OER
How Do You Multiply Decimals?
Using examples like 4.2 multiplied by 5.9, an instructor shows how to find the answer to these types of problems. She starts by explaining that the key to these problems involves ignoring the decimal points until you've multiplied the...
Corbett Maths
Multiplying Decimals
Make a point to carefully place the decimal point. By watching an educational video, pupils learn how to multiply decimals. They see that they need to multiply as if there are no decimal points, then hear how to correctly place the...
Curated OER
Multiplying Decimals
See how easy it is to multiply decimals. This clip shows learners that when you multiply decimal numbers, you multiply the same as you would a whole number, then plug in the decimal point at the end.
Curated OER
How Do You Multiply Decimals?
Find the product of numbers that have decimals. First, ignore the decimals and multiply the integers. Second, count the place values of the decimals for each value given. Third, add the values together. Fourth, place the decimal in the...
Curated OER
How Do You Multiply Decimals?
Find the product of numbers that have decimals. First, ignore the decimals and multiply the integers. Second, count the place values of the decimals for each value given. Third, add the values together. Fourth, place the decimal in the...
Curated OER
Dividing Decimals 2.1
Occasionally, in mathematics, there are "short cuts" one can take. Sal explains a quick way to divide decimals numbers. He demonstrates that in certain cases, simply shifting the decimal point to the left will result in a correct answer.
Curated OER
How Do You Divide Decimals?
Converting decimals to whole numbers is explained. An instructor shows how to multiply a decimal to convert it to a whole number. She then goes on to explain how to find the answer to a division problem involving decimals.
Corbett Maths
Percentages: Multipliers for Increasing and Decreasing by a Percentage
Solve two-step percent problems with a single multiplication. By reviewing how to find the percent of a problem, the video introduces the idea of finding multipliers to find solutions for increasing or decreasing percent problems. Pupil...
Curated OER
Multiplying Fractions and Mixed Numbers
Here is a great video explaining how to multiply a fraction by a whole number. Sal shows students how to put a whole number over 1 in order to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
Curated OER
How Do You Do Long Division with Decimals?
Review some long division that contains a decimal number. Do the division first and when that is completed then figure out where the decimal goes in the answer. Just don't let those decimals make you crazy about doing the long division.
Khan Academy
Multiplying And Dividing with Significant Figures
Sal takes out the big guns - or in this case, big calculator - in this video, which carries the concept of significant figures even further. Sal shows how to multiply and divide significant figures using both electronic and handwritten...
Mathispower4u
Solve a Linear Equation With Decimals and Variables on Both Sides (Example)
Create better equation solvers! The video presentation tackles solving an equation with variables on both sides with decimal coefficients. The instructor explains how to multiply by a constant to eliminate the decimals before continuing...
Corbett Maths
Decimals to Percentages
Complete a quick conversion. Pupils view the short video to learn the process to convert a decimal to a percent. The scholars then practice the skill with two worksheets, giving them a chance to better understand the concept.
Krista King Math
Decimal Arithmetic
Teach the four operations with decimal numbers while focusing on the algorithms. The video instructor demonstrates one example each of adding, subtracting, multiplying, and dividing with decimal numbers. She explains the steps of each...
Curated OER
How Do You Divide a Decimal by a Decimal?
Many learners would look at this decimal division problem and just skip it. Don't let them do that! Figure out how to help your learners master long division. The teacher helps make decimals and long division seem doable.
Krista King Math
Decimal Equations
Extend your classes' understanding of solving equations by introducing decimals into the mix! Here, a video tutorial shows how to convert decimals to integers in an equation by multiplying by powers of 10. Shows three examples of...
Virtual Nerd
How Do You Use an Equation to Find a Part of a Whole?
Watch the instructor change a percent into a decimal and multiply it by the original number to determine the percent. One idea would be to embed this video in a PowerPoint presentation, or assign it as homework with your flipped...
Math Antics
Comparing Fractions
Comparing fractions, it is just not the same as comparing whole numbers. The video starts with fractions with common denominators and moves on to comparing fractions that are not as obvious. Scholars learn two techniques, cross...
Curated OER
How Do You Multiply Mixed Numbers?
Multiply two mixed fractions. First, change them to improper fractions. Now, multiply the numerator times the numerator and the denominator times the denominator. Oh, that's a big number. Reduce it. Now, change it back into a mixed...
Khan Academy
Dividing whole numbers and fractions: t-shirts
There is no better way to present a math problem than within the context of a story. Sal explains how he divides a fraction to solve a word problem where he must determine how many shirts can be made with 48 yards of fabric. Problems...
Curated OER
How Do You Figure Out Which of Two Fractions is Bigger?
Trying to decide which method to use to compare the value of two fractions? You could find a common denominator, you could turn them into decimals, or you could cross multiply. Let's cross multiply because we like to multiply more than...
Curated OER
How Do You Turn a Decimal Into a Percent?
Multiply a decimal number by 100 to get a percent number. Or take a shortcut and merely move the decimal point two places to the right. But don't forget to write the percent sign after you move the decimal. Otherwise it's just a number...
Math Antics
Finding a Percent of a Number
Use the knowledge of multiplying fractions to find a percent of a number. The video builds the process to find the percent of a number by recalling that the word of in fraction problems meant to multiply. Finding the percent of a number...
Curated OER
Estimating Surface Area
Kids might enjoy this dramatic presentation on estimating surface area. The fake Transylvanian accent is a bit distracting but the problem solving practices are sound. Dr. Crazy Pants rounds his decimal measurements then multiplies...